Burnishing-machine.



W. JACKSON & H. N. POGHIN.

BURNISHING moms.

APPLICATION FILED OUT. 2, 1907. 1 077 349 Patented Nov. 4, 1913.

3 SEBETS-SHEET 1.

CDLUMBIIA FLANOORAPH co.,wAsmNu'r0N. D. c.

W. JACKSON & H. N. POGHIN. BURNIS-HING MACHINE.

APPLICATION ITILED OUT. 2, 1907.

1 ,O77,349, Patented Nov. 4, 1913.

3 SHEETS-SHEET 3.

Fig. 8.

VV/T/VESSESL f-W COLUMBIA PLANOGRAPH 0)., WASHINGTON. n. c.

UNITED STATES PATENT CFFTCEQ WALTER JACKSON AND HAROLD NICHOLS POCHIN, OF LEICESTER, ENGLAND, AS-

SIGNORS TO UNITED SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A

CORPORATION OF NEW JERSEY.

BURNISHING-MACHINE.

To all whom it may concern Be it known that W6,WALTER JACKSON and HAROLD NIcHoLs POOHIN, subjects of the King of England, residing at Leicester, in the county of Leicester, England, have in vented certain Improvements in Burnishing- Machines, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to machines for smoothing, burnishing or finishing articlesof leather and more particularly to machines of the above class employed forsetting the edges of shoe soles.

The invention is more especially applicable to machines of that class in which the work and finishing tool are arranged to have relative traverse while one is being vibrated in contact with the other and this traverse may be either by hand, the operator moving the one while holding it in contact with the other that different portions of the sole edge may be acted upon by the tool or said traverse may be automatic, either the shoe being automatically moved so as to bring different portions of the edge of its sole in contact with the tool, or the tool be ing moved while the shoe is held stationary, or both being moved. In machines of this class, in order to secure uniform work it is desirable that the tool act evenly on the sole edge at the beginning, middle and end of each vibration and for one vibration the same as for another. To effect this result, it is necessary not only to hold the working face of the tool from yielding in the direction of vibration, but also to maintain constant the relationship of the working face of the tool to the shoe edge being operated upon, this constant relationship being necessary in order to obtain an even effect from the different vibrations, but being very difficult to obtain in practice as the edge of the shoe sole varies both in contour and inclination for different parts of the sole and it is necessary for the position of the tool relative to the sole as a whole to be varied to correspond with such variations in the contour or inclination of the particular part of the edge being operated on.

This difliculty it is the object of the present invention to obviate, and to that end the Specification of Letters Patent.

Application filed October 2, 1907.

Patented Nov. 4, 1913.

Serial No. 395,568.

invention is herein shown as comprehending means for maintaining the working face of the tool in the constant correct relationship to the varying contour and inclination of the sole edge as one passes the other.

Another object of the invention is to provide an improved construction of tool holder in combination with mechanism as hereinafter described for moving the tool held in said holder and the work relative to each other while at the same time allowing said tool automatic and practically universal adjustment relative to its holder to correspond to variations in the sole edge but holding the working face of the tool in constant relationship to its holder in the direction of the vibrations, through the medium of which said tool acts on the work.

Other objects of the invention are to provide new and improved means for supporting an edge setting tool so that said tool shall be adapted to yield to accommodate variations on the surface of the stock operated on and to maintain a constant rela tionship to such surface independent of such variations, and so that the means acting to cause said tool to yield may be enabled to act thereon with a maximum of efficiency. For the sake of illustration, these means are shown as embodied in a new and improved means for mounting the tool of such a machine which allows said tool to automatically adjust itself to conform to the surface of the material which is being operated upon at any time, but holds the working face of said tool in constant relationship to its holder in the direction of the vibrations through the medium of which said tool acts on the work, though it is obvious that the same results would be obtained by depriving the tool holder of this capability of adjustment and giving it to the work support so that the work would be adapted to yield and to present the surface to be operated upon in a constant relation to an unyieldingly mounted tool.

In the instances chosen as illustrative of this invention and in all of which the vibrations are supposed to take place in a substantially horizontal plane, extending along the face of the work, the tool is so mounted as to be guided by the surface acted upon to adjust its position by yielding away from the work in a horizontal direction as the dis from the vertical, and to be rotated on its own axis to accommodate itself to upward or downward curves in the edge of the sole.

It is obvious, however, that this invention could be applied to machlnes 1n whlch the vibrations take place in other directions, the

mounting of the tool being changed in such cases so as to pernnt the tool to yield in the same directionsrelative to the direction of v1brat1on but holdlng said tool rigid against movement in the directionof said vibrations. I e do not des1re to limit ourselves, moreover, to the particular means dlsclosed for obtaining these various adjustments, as it is evident that they may be obtained in many different ways, or even the particular as it is obvious that one adjustment can be used Without the other or in combination combination of simple adjustments disclosed with one or more of the others. H

In the accompanying drawings, Figure 1 1s an elevation of an edge setting machlne embodying one form of our invention; Fig. K

2 is a plan view of the same; Fig. 3 is a detail elevation of a modlficatmn of the form of tool holder illustrated in Fig. 1, a

part being broken away to show the inner structure thereof; F g. 4 1s a section on hne 44, Fig. 3; Fig. 5 is an elevation of an alternative form of tool holder, a part belng broken away; Fig. 6 1s a section on line 6-6,

i i. is an eeva ion 0 a se 11 F g 5, F 7 l t f co (1 alternative form, and Fig. 8 1s a sectlon on line 8-8, Fig. 7.

Referring to Figs. 1 and 2, 2 represents the main frame of the machine, supporting at the top thereof the work support or jack 4, which may be of any usual construction, and at the bottom the main driving shaf-t ti which is supported in bearings '8 and is driven by a belt connecting the fast and loose pulleys 10 and 12 with any usual source of power. Work support 4 carrying the shoe to be acted upon is of any well known construction and is supported on the upper end of a vertical rod 14 mounted within bearings, not shown, on the frame 2. Said vertical rod 14 is adapted to be rotated by worm gearing comprising a worm wheel 16 mounted on said rod and a wormlfi mounted on the horizontal shaft 20. This shaft 20 is supported in suitable bearings in the frame 2 and is provided with pulleys 22 and 24 and friction clutches '26 and 28. Pulleys 22 and 24 are mounted so as to run loose on said shaft 20 and are driven in opposite directions to each other by crossed and open belts 27 and 29 respectively, said belts being driven by pulleys 30 and 32 respectively on the main shaft 6. The clutches 26 and 28 are formed integral or secured together and. are mounted on a feather, not shown, on the shaft 20 so as to be capable of a sliding movement thereon to move into and out of contact with the respective pulleys. \Vhen the pulley 22 and clutch 26 are in gear the shaft 20 and work supportor jack 4, actuated thereby, are driven in one direction and when the pulley 24 and clutch 28 are in gear the said shaft and jack are driven in the opposite direction. To provide for thus reversing the direction in which the shaft 20 is driven, a shifting lever 34 is slidably mounted in the frame 2 and supports an arm '36 on which is mounted a roller 38 which is situated between the two pairs of pulleys and clutches to simultaneously move the clutches into and out of contact with their respective pulleys. When the jaek 4 has moved around in one direction to a point where the finishing tool has reached the end of that part of the sole edge which it is desired to finish, which is usually that point where the forepart of the sole adjoins the waist, an arrangement of cams 40 on the lower side of a table 42 carried by the jack rod 14 engages a second roller 44 carried by the shifting lever 34 and causes the latter to slide and change the clutches and thus re verse the motion of the jack. 2 The opposite action of the clutches will take place when the boot sole has been moved around until a point corresponding to the first point of turning, but on the opposite side of the sole, has been reached, and this reversal is automatically repeated until the sole edge is.

finished.

The edge setting tool 50 is carried on which is supported in bearings 58 in the head 60 of the machine and is actuated from the main shaft 6 of the machine. The head 60 is mounted on plate 62 so as to be able to move to and fro relatively to the jackto accommodate different sizes of blanks of shoes. The plate (32 is mounted on a bracket 64 attached to the top of the frame 2 in any convenient manner, the said slide plate being connected to the bracket by means of a pivot pin 66 and a slot and pin connection 68.

In order to keep the tool 50 always square and parallel with the sole edge, as the shoe being operated upon is moved around, a cam 70, see Fig. 2, is provided, the said cam being mounted on a table 72 supported on the jack rod 14. The said cam 70 is of a contour to approximately coincide with the shape of the sole being operated upon and actuates a roller 74 depending from an arm 76 projecting from the slide plate 62 to control the position of said slide plate. The arrangement of the pivoted slide plate 62 and the cam 7 0 is such that as the jack 4 and table 72 rotate the roller 74 will, under the influence of the cam, cause the slide plate and tool head to move horizontally on the pivot pin 66 and thus constantly turn the tool 50 to a square and parallel position relative to the edge of the sole being treated. To accommodate this horizontal movement of the head 60 and the driving shaft 56 car ried thereby, the connection between said shaft and driving shaft 6 is made flexible and the supporting bracket 64, is, as shown in Fig. 2, extended sidewise radially with the pivot pin 66 to support the slide plate during its various positions during the finishing of a sole edge.

lVhile we have thus described the foregoing in detail as an example of a type of machine to which our invention may be applied, it is to be understood that our invention is by no means limited in its use to a machine of the above type and that the structure just described forms no part of the subject-matter of the present application but is the subject of another and co-pending application of ours filed October 22, 1906, Serial No. 339,956.

Referring again to Fig. 1 of the drawings,

we have indicated at A the edge of a shoe sole which is being operated upon by tool 50. To attain the object of the present invention and to insure the correct relationship of the tool 50 and sole edge A means have been provided for canting the tool crosswise of the sole edge, means for moving the lips of the tool into parellelism with both sides of the sole edge, means for ad justing the tool for variations in the height of the sole, and also means for maintaining the tool on the edge notwithstanding the varying contour of the sole. These several means preferably comprise a tool holder so constructed that the tool is rigidly held therein in the direction in which said tool vibrates when operating upon the sole edge but is permitted to yield in one or more of the above directions which, as above indicated, are transverse to the direction of vibration and in a rotatable as well as in a canting direction which movements, in combination with a horizontal sliding movement of said holder toward and from the work, adjust and maintain the working face of the tool in the desired coincidence with the edge of the boot or shoe sole. These necessary movements of the finishing tool may be ob tained in several ways. According to one form, and that shown in Fig. 3 of the draw ing, the edge setting tool carrier or holder comprises a member 82 having a projecting boss 84 on its outer face upon which the hollow end of the tool 50 is mounted. The boss 84 is provided with a pin 86 projecting from its side and the hollow portion of tool 50 has a slot 88 therein so that the tool may be readily applied to the boss 84 on which, when in its working position, it is free to rotate to a slight extent, but is held against accidental removal by the said pin and slot connection. The front face of the tool 50 is formed with an edge setting face D and guide flanges B, C on its upper and lower faces respectively adapted to co-act with the surface, and the upper and lower edges respectively of the sole edge being operated on. The member 82 is of the shape shown and is pivoted at its upper and lower extremities to links 90 and 92 which are pivotally connected at their other ends to the upper and lower ends respectively of a curved lever 94. This lever 94 is pivoted approximately centrally at 95 to a rod or bar 96 slidably mounted in the head 52 which is extended as shown in Fig. 4 to form two cheeks or guides 98 and 100 between which member 82, the links 90 and 92, and lever 94 are mounted. With this arrangement the links 90 and 92 permit the vertical rise and fall of the tool and the pivoted lever 94 by turning on its center permits the necessary canting motion of the tool while the cheeks formed on head 52 hold the tool rigidly against yielding in the direction of the vibrations. As the co-action between the sole edge being acted upon and the tool is the actuating means for these various adjustments, it is desirable to give to this co-action a maximum of efficiency, and to that end we have shown tool supporting member 82 as so shaped that the working face of the tool, with which the sole edge contacts, is situated directly between the points at which said member is pivoted and approximately equidistant from both. With this construction the co-action between the tool and work has greater efiiciency to cause the tool to adjust itself to the face of the work than in any other relation that may be established between the face of the tool and its points of support. 5

Tool 50 is moved forward in contact with the sole edge A by a spring 102 which engages between the rear side of rod or bar 96 and the end of the recess formed in the head 52 in which said bar slides. Spring 102 acts upon the rear side of the rod 96 to force the tool forward into contact with the work and a bell crank lever 104 is pivoted on the head 60 and may be actuated by any suitable means, as a treadle, not shown, in opposition to said spring 102 for the purpose of withdrawing the tool from the work. Said spring 102 acts to force the tool 50 in contact with the work while at the same time permitting said tool to yield according to the contour or shape of the sole. An alternative form of device for accomplishi'ng the same purpose is shown in Fig. 1 of the drawings in which bar 96 is mounted to slide within the vibratin head 52 and to vibrate therewith, as in the other forms, but is extended at its rear portion into the stationary head 60, within which sufficient room of lateral clearance allowed for the vibrations of said rear portion. Levers 106 are bell crank in shape and located one on each side of the head 60, being pivoted at a point near their centers to a pin or spindle 108 passing through the head 60, the lower arm 110 of each lever being attached by a pin and slot connection to the rear portion of bar 96 located within head 60. The 'upper arms of these levers are extended toward the rear of the head 60 and carry weights 112 which tend through the medium'of said levers to move forward the sliding bar 96 and the tool carried thereby. I

111 the form of our invention illustrated in Figs. 5 and 6 of the drawings, tool 50 is mounted upon a boss projecting forward from the front-of a slide 114 which is ar ranged to slide vertically within a grooved face 116 of a block 118 of more or less T- section. This block 118 is pivotally held in the grooved end 120 of the sliding bar 96. The narrow part 119 of said block 118 fitting within the groove 120, is held in place by means of two pivot pins 122 which pass through slots 12 1 in said narrow part 119. Springs 126 located between the end of the narrow part 119 and the bottom of the groove 120 tend to keep the T block 118 forward in its support, and saidsp'rings 126 are preferably carried on pins 128 pro= jecting from the block 118 thron 'h holes 130 in the bottom oit'groove 120. larger spring 132 is also provided and acts to hold the"? block as a whole in forward po sition relative to its supporting member 96, and tension springs134 are provided to balance the weight of the slide ll land nor mally keep said slide raised Within the T block 118. In this casethe tool 51) is sup ported in such a manner that it is held rigidly against yielding in the direction of its vibrations, but can yield to the boot sole edge in all the desired directions either by rotating on the boss on whi'chit is mounted, or vertically by raising or depressing the slide plate 114 in the T block 118 or in angular or cant-ing direction by turning the said T block on either of thepivot pins 122 against the action of controlling springs 126, while the slide bar 96 is pressed for ward to maintain said tool in Working con tact with the sole edge by spring 132 and also either by a spring, as shown in Fig. 3 of the drawin s, or by weighted levers as shown in Fig. r

In the form of the invention illustrated on which the tool 50 is mounted is carried a by a segmental slide 136 arranged to move on ball bearings 138 between the cheeks or guides 1410 of a member 1 11 pivoted at 1 12 on slide bar 96 which is pressed forward to hold the tool in contact with the work by a spring 102, as in the other forms. The pivoted member 1 11 carrying the segmental slide 136 is located between cheeks 1 18 of the vibrating head 52, the oscillating motion of said head being transmitted thereby to the tool.

As the work is moved past the tool the latter may adjust its position so that its working face always coincides with the edge of the work either by rotating on its boss as before or in a vertical direction by moving the member 141 on its pivot 1 12 and at the same time moving the segmental slide so as to compensate for the cant-ing of the tool caused by said movement on the pivot 1-12, or the tool may have canting motion by turning or moving the segmental slide 136 or a movement away from the work against the action of spring 102, while at the same time the tool is held rigidly against yielding in the direction of its vibrations.

v Having described our invention, what we claim as new and desire to secure by Let= ters Patent of the United States is 1. A machine of the class described comprising a tool, a tool carrying head provided with parallel cheeks and a tool supporting member mounted between said cheeks and within said head to enable the tool to move bodily in a plurality of directions relatively to the head as it follows the contour of the work.

2. A machine of the class described comwithin the head and comprising a parallel link system, means for supporting the tool on one link, and means connected with the opposite link of the system for transmitting pressure to the tool. v

4:. A machine of the class described comprising a tool-carrying head, a tool, and supporting mechanism for the tool comprising a parallel link system, means for supporting the tool on one link and means connected with the opposite link of the system for transmitting pressure to the tool.

5. A machine of the class described comprising a tool-carryin head, a tool, and supporting mechanism for the tool comprising a parallel link system, one link of the system being adapted to support the tool and the opposite link being adapted to receive and transmit to the tool the working pressure.

6. A machine of the class described comprising a tool-carrying head, a tool, and supporting mechanism therefor comprising a parallel link system, one link of the system being adapted to support the tool and another constructed and arranged to receive and transmit to the tool the working pressure.

7. A machine of the class described comprising a tool, means for supporting the same, and means for vibrating the support, said support being pivotally mounted at points substantially equi-distant from the tool whereby angular adjustment of the tool is permitted.

8. A machine of the class described comprising a tool, means for supporting said tool, and additional means for producing a vibratory movement of said tool, said support being pivotally mounted upon a plurality of movable fulcra constructed and arranged to enable the tool to adjust itself angularly to the work in a plane extending at substantially right angles to the plane of its vibratory movement.

9. A machine of the class described comprising a tool, means for supporting the same, said support being pivotally connected with a plurality of links, means for transmitting to the links, and therethrough to the tool, the working pressure, and means independent of said links for producing a vibratory movement of said support.

10. A machine of the class described comprising a tool, means including a link mechanism for supporting said tool, said support being constructed to receive and transmit to the tool the working pressure, and means independent of said link mechanism for producing a vibratory movement of said support.

11. A machine of the class described comprising a tool, a spring actuated slide bar and an articulated frame interposed between said tool and bar whereby the pressure of the latter is transmitted to the former.

12. A machine of the class described comprising a tool, a slide bar normally actuated toward the work, and an articulated frame interposed between said tool and bar whereby the pressure of the latter is transmitted to the former.

13. A machine of the class described comprising a tool, a slide bar, means to exert a pressure on the slide bar and an articulated frame interposed between said tool and bar whereby the pressure of the latter is transmitted to the former.

14. A machine of the class described comprising a tool, a spring pressed slide bar, and an articulated frame pivoted thereto whereby the pressure of the slide bar is transmitted to the tool. p

15. A machine of the class described comprising a tool, a member normally actuated toward the work, an articulated frame interposed between said tool and member whereby the pressure of the latter istransmitted to the tool and angular adjustment of the same is permitted, and means acting through said frame to vibrate the tool.

16. In a machine of the class described, the combination with means for holding the work to be acted upon, of a tool for acting upon said work, means for supporting said tool in position, said last mentioned means comprising a plurality of levers, and means independent of said levers for producing a vibratory movement of said tool support.

17. In a machine of the class described, the combination with means for supporting the work, of a tool for acting upon the work, and means for actuating the tool, said last mentioned means comprising a member having a stud upon which said tool is mounted, links connected to either end of said member, a lever connecting the opposite ends of said links and a slide bar connected with the center of said lever, together with means for actuating said slide bar forward to hold said tool firmly in contact with the worl.

In testimony whereof we have signed our names to this specification in the presence of two subscribing Witnesses.

WALTER JACKSON. HAROLD NICHOLS POCHIN.

Witnesses:

WALTER W. BALL, F. H001).

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

Correction in Letters Patent No. 1,077,349.

It is hereby certified that in Letters Patent No. 1,077,349, granted November 1, 1913, upon the application of Vvalter Jackson and Harold Nichols Pochin, of Leicester, England, for an improvement in Burnishing-Mzichines, an error appears in the printed specification requiring correction as follows: Page 2, line 25, said line should be read after line 22, same page; and that the said- Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 25th day of November, A. D., 1913.

[snnn] J. T. NEWTON,

Act 512g Commissioner of Patents. 

